Would be "dead" though? I would rather say that the two would be put on the same pedestal, being used for different cases at different times (when needed), at least by the governments (which we discuss here, not on a scale of a person and such).
Gold is definitely not going to die. There has not been as much hype for Gold as there has been for Bitcoin in the past decade and the rich class surely prefers Gold, publicly at least. But they serve two different purposes although they seem to have a striking similarity. Gold will continue to be used in a lot of industries, there is no viable alternative yet with the same level of specifications or even better and at the same cost or cheaper than it. Bitcoin can do wonders in a lot of ways, but a cyber attack can and will put Bitcoin down until it is solved.
Also, Bitcoin will never be FRIENDS with the Government unlike a few people in this topic say. They may be neutral to Bitcoin since there is no way they can totally conquer it but it will never be their friend. Gold supply is easier to manipulate. It is also easier to hide illegality done by Governments and politicians through Gold than it is through Bitcoin. If you want a closer match, it may be Monero. But then Monero is better AND worse. A politician can go on with their life without anybody else spying on them. Amazing for them! At the same time however, we can ALL go on with our lives without anybody questioning us or our financial choices. Worse than anything else for them!
Realistically, anything that takes power from the most powerful classes of today will be their number one enemy. They can pretend they like Bitcoin and want to help it all they want, they will never gain my trust and I will always question their plans to make Bitcoin 'better'.